Estimating bird species richness from capture and count data
We used capture-recapture methods to estimate bird species richness from mist-net and point-count data from a study area in Campeche, Mexico. We estimated species richness separately for each survey technique for two habitats, forest and pasture, in six sampling periods. We then estimated richness based on species' detections by either technique, and estimated the proportion of species detected by each technique that are not part of the population sampled by the other technique. No consistent differences existed between richness estimates from count data and from capture data in the two habitats. In some sampling periods, over 50% of the richness estimate from one survey technique may be species that are not sampled by the other technique, suggesting that one technique may not be adequate to estimate total species richness and that comparing estimates from areas sampled by different techniques may not be valid.
Citation Information
Publication Year | 1995 |
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Title | Estimating bird species richness from capture and count data |
Authors | D.K. Dawson, J.R. Sauer, P.A. Wood, M. Berlanga, M.H. Wilson, Chandler S. Robbins |
Publication Type | Book Chapter |
Publication Subtype | Book Chapter |
Index ID | 5210733 |
Record Source | USGS Publications Warehouse |
USGS Organization | Patuxent Wildlife Research Center |